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Introduction to Database System

Introduction to Database System
A form defines

where data is placed on the screen
the width of each field
both of the listed here
none of the listed here

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Introduction to Database System
In SQL, the CREATE VIEW command is used

to recompile view
to recompile a table
to define a view of one or more tables or views
to create a trigger

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Introduction to Database System
Periodically adding, changing and deleting file records is called file

restructuring
renewing
upgrading
Updating

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Introduction to Database System
A relation is in Boyce-Codd Normal Form (BCNF) if every determinant is a composite key.

False
True

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Introduction to Database System
Given the functional dependency R → S , R is called the determinant.

False
True

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Introduction to Database System
A computer file contains several records. What does each record contain?

Database
Fields
Bytes
Words

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